Find the similarity ratio of a prism with the surface area of 81 m2 to a similar prism with the surface area of 361 m2. A. 6,859 : 729. B. 9 : 19. C. 19 : 9. D. 729 : 6,859

The surface area of a prism is equal to six times the area of each face. The face is assumed to be square, hence the area is equal to the square of the length. In this case, the ratio of the surface area is equal to the square root of the ratio of surface area. The answer is B. 9:19